Tip: Unlocked for Worldwide use. Please ensure local area network is compatible. click here for Network Frequency of your country. Please check with your carrier/provider before purchasing this item.Notice:This Android/Windows device is designed to function specifically with the current Android/Windows OS installed on it. Any alterations such as upgrades, modding with custom ROMs, rooting or flashing the Android device with other firmware will automatically void the device's warranty.Cubot X16 S is preorder now so the language and other information will be confirmed when it's on sell later. Hope you can understand!